enormous wings

So I read the story the Very old Man with Enormous Wings and to tell you the truth that story was confusing. To understand it I read it a second time and I still didn’t truly understand this story. But I can tell you that it was sad how the Old Man was taken such advantage off. He supposedly was the reason for the baby to get better and to thank him they threw into a hen pin. They is scrutinized by a bunch of people and harassed. In the end he ends up helping that family make a lot of money for them to redo their home and to get new clothes and to repay him they did nothing. It was because of him that they had so rich. The parents won’t let the baby get near the Old Man when he’s not even dangerous. He didn’t hurt anyone throughout his stay and he hardly even moves as is. In the end the Old Man turns into a crow and flies off and the wife is glad to be rid of him. I must have misunderstood this story because I see that family as being ever ungrateful.
Anyways this story was just odd and confusing to me but I still like the illustration. It was very creative to give it the least. I could tell you I couldn’t come up with anything like that. To make a story about a Old Man and the chaos that comes with him and then to have him turn into a crow. How interesting this is. Where does one come up with such a story? I feel like I read the story wrong because somehow the morals or the reasoning behind the story was very unclear. It was defiantly interesting though. Creative and Interesting.